STMicroelectronics
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L78L09ABUTR
বিস্তারিত দেখুন ডেটাশিট

L78L09ABUTR

Product Overview

Category

The L78L09ABUTR belongs to the category of linear voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

  • Input Voltage: Up to 35V
  • Output Voltage: 9V
  • Maximum Output Current: 100mA
  • Low dropout voltage
  • Thermal shutdown protection

Package

The L78L09ABUTR comes in a TO-92 package.

Essence

This voltage regulator is essential for maintaining a stable voltage supply in various electronic applications.

Packaging/Quantity

The L78L09ABUTR is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: Up to 35V
  • Output Voltage: 9V
  • Output Current: 100mA
  • Dropout Voltage: 1.7V
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The L78L09ABUTR has three pins: 1. Input (Vin) 2. Ground (GND) 3. Output (Vout)

Functional Features

  • Regulates input voltage to a stable 9V output
  • Low dropout voltage ensures efficient regulation even with small voltage differentials
  • Thermal shutdown protection prevents damage due to excessive heat

Advantages and Disadvantages

Advantages

  • Stable output voltage
  • Wide input voltage range
  • Thermal protection
  • Small form factor

Disadvantages

  • Limited maximum output current
  • Higher dropout voltage compared to some modern regulators

Working Principles

The L78L09ABUTR operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant 9V output, regardless of changes in the input voltage or load.

Detailed Application Field Plans

The L78L09ABUTR is commonly used in: - Battery-powered devices - Sensor modules - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the L78L09ABUTR include: - LM7809 - UA7809 - MC7809

In conclusion, the L78L09ABUTR is a reliable linear voltage regulator with a wide input voltage range and thermal protection, making it suitable for various electronic applications.

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প্রযুক্তিগত সমাধানে L78L09ABUTR এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

  1. What is the L78L09ABUTR?

    • The L78L09ABUTR is a positive voltage regulator that provides a fixed 9V output.

  2. What is the input voltage range for the L78L09ABUTR?

    • The input voltage range for the L78L09ABUTR is typically between 10V and 35V.

  3. What is the maximum output current of the L78L09ABUTR?

    • The maximum output current of the L78L09ABUTR is 100mA.

  4. What are the typical applications of the L78L09ABUTR?

    • The L78L09ABUTR is commonly used in various electronic devices such as power supplies, industrial controls, and automotive systems.

  5. Does the L78L09ABUTR require external components for operation?

    • Yes, the L78L09ABUTR requires external capacitors for stability and proper operation.

  6. What is the thermal resistance of the L78L09ABUTR?

    • The thermal resistance of the L78L09ABUTR is typically around 50°C/W.

  7. Is the L78L09ABUTR available in a surface-mount package?

    • Yes, the L78L09ABUTR is available in a TO-92 package, which is suitable for surface-mount applications.

  8. Can the L78L09ABUTR handle input voltage spikes or transients?

    • The L78L09ABUTR has built-in protection features to handle input voltage spikes and transients within specified limits.

  9. What is the operating temperature range of the L78L09ABUTR?

    • The L78L09ABUTR can typically operate within a temperature range of -40°C to 125°C.

  10. Are there any recommended PCB layout considerations for using the L78L09ABUTR?

    • It is recommended to follow the manufacturer's guidelines for PCB layout, including proper grounding and placement of input/output capacitors for optimal performance.